#include <iostream>
#include <string>
#include <cmath>
#include <cctype>

using namespace std;

class Solution {
public:
    int hammingWeight(int n) {
        int count=0;
        while(n){
            int b=n&1;
            if(b==1)
            count++;
            n>>=1;
        }
        return count;
    }
};

class Solution {
public:
    int findComplement(int num) {
        int ret=0;
        int i=0;
        while(num)
        {
            int b = num & 1;
            if(b==0){
                ret|=(1<<i);
            }
            num>>=1;
            i++;
        }
        return ret;
    }
};

class Solution {
public:
    uint32_t reverseBits(uint32_t n) {
        uint32_t x=0;
        for(int i=0;i<32;i++)
        {
            int tmp=(n>>i)&1;
            tmp=tmp<<(31-i);
            x|=tmp;
        }
        return x;
    }
};

int main1()
{
	int n;
	cin>>n;
	if(n&1==1)
	cout<<"odd"<<endl;
	else
	cout<<"even"<<endl;
	return 0;
}
